Assume that less skilled workers are in the lower half of earnings. Which of the following events would cause the 80:20 ratio of incomes to go from 2.0 to 3.0?

Question

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If there is a relative decrease in demand for unskilled workers, their wages will decrease more than higher-skilled workers. This will widen the gap between the two groups and increase the 80:20 ratio of incomes. A and D would increase everyone's earnings or reduce the number of unskilled workers, but they would not necessarily change the ratio of incomes. B is not sufficient to explain a significant change in the 80:20 ratio of incomes.

Assume That Less Skilled Workers Are in the Lower Half